Performance of Amplify-and-Forward and Decode-and-Forward Relays in LTE-Advanced

Saleh, Abdallah Bou; Redana, Simone; Raaf, Bernhard; Riihonen, Taneli; Hämäläinen, Jyri; Wichman, Risto

doi:10.1109/vetecf.2009.5378824

Cited by 42 publications

(36 citation statements)

References 10 publications

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“…LTE-Advanced is the enhancement of LTE-Release 8 [4] as increased features are added to LTE-Advanced to provide and increased performance of the LTE technology, with LTE-Advance not been a total depart from LTE Release but an improved or enhanced version [6]. Recently various researches have been done in this area to achieve costefficiency, coverage expansion and enhancement in throughput for LTE-Advanced network [7].…”

Section: Related Workmentioning

confidence: 99%

Relay Enhanced LTE-Advanced Networks

2016

IJSR

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Abstract:3rd Generation Project Partnership (3GPP) proposed the 4th generation mobile telecommunications (4G) technology [1], one such technology being Long-Term Evolution -Advanced (LTE-Advanced) to the ITU-T, which aims to improve the already existing Long Term Evolution (LTE-Release 8) technology. The need to provide high peak data rate to the meet of the demands of the market lead to enhancement of LTE-Release 8 which is LTE-A, that will provide an improved coverage range and increased bandwidth availability to end users. As LTE advanced is an enhanced version 8 rather than a total departure from LTE-Release 8.With LTEAdvanced having an increase in bandwidth of up to 100MHz that is achieved by means of carrier aggregation technique [2]. The main aim of this paper is to provide a detailed overview of relay concepts in LTE technology and discuss

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Section: Related Workmentioning

confidence: 99%

Relay Enhanced LTE-Advanced Networks

2016

IJSR

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“…In case the relay just amplifies and forwards the received signals, it is referred to as the AF relay. The performances of the DF and AF relays were compared in [189][190][191] and concluded that DF relays are more suitable for the LTE-Advanced system. The following types of DF, namely Layer 3 (L3) relays, can be categorised as [192]:…”

Section: Overviewmentioning

confidence: 99%

LTE-Advanced Radio Access Enhancements: A Survey

Dehghani

Arshad

MacKenzie

2014

Wireless Pers Commun

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Long Term Evolution Advanced (LTE-Advanced) is the next step in LTE evolution and allows operators to improve network performance and service capabilities through smooth deployment of new techniques and technologies. LTE-Advanced uses some new features on top of the existing LTE standards to provide better user experience and higher throughputs. Some of the most significant features introduced in LTE-Advanced are carrier aggregation, enhancements in heterogeneous networks, coordinated multipoint transmission and reception, enhanced Multiple Input Multiple Output (MIMO) usage and deployment of relay nodes in the radio network. Mentioned features are mainly aimed to enhance the radio access part of the cellular networks. This survey article presents an overview of the key radio access features and functionalities of the LTE-Advanced radio access network, supported by the simulation results. We also provide a detailed review of the literature together with a very rich list of the references for each of the features. An LTE-Advanced roadmap and the latest updates and trends in LTE markets are also presented.

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“…Among related works in scheduling-based relaying, the literary works [12,13] propose fairness approaches to OFDMA relaying assuming multiple parallely activated relays in a time slot. A similar architectural assumption is used in this article, thereby enabling spatial frequency reuse among many relays within a macro-cell.…”

Section: Prior Work and Contributionsmentioning

confidence: 99%

A novel scheduling framework for QoS-aware OFDMA resource allocation in a network with small relay cells and macro users

Venkatasubramanian

Haustein

2012

J Wireless Com Network

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Relaying is a convenient way to provide full coverage in cellular networks. In particular, small relay cells can be used as a cost-effective solution for indoor coverage in MIMO-OFDM systems. The small relay cells would need to cater for indoor users' quality of service (QoS) expectations. One key QoS objective is delivering stable data rates for multimedia applications, which we refer to as guaranteed data rates. In this article, we consider optimization for delivering guaranteed data rates in a network with multiple relays and a macro base station, in a scenario when there are both macro users and relay users to be served. A novel scheme called cell-guaranteed bit rate by relay scheduling is proposed, with both optimal and heuristic scheduling methods. To perform the optimization we exploit resource block allocation, and parameters such as relaying duration and relay bandwidth allocation. Interference between relays and macro is avoided through time domain orthogonalization. Another key aspect of the scheme is inter-frame scheduling, wherein relay feeder links can be flexibly scheduled in any time slot along with macro users. Performance evaluation is presented using real-time indoor measurement channels and a sample test scenario. Results show the heuristic method can improve performance by 89.47% as compared to round-robin scheduling at relays and is within a 5% gap to optimal scheduling.

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Performance of Amplify-and-Forward and Decode-and-Forward Relays in LTE-Advanced

Cited by 42 publications

References 10 publications

Relay Enhanced LTE-Advanced Networks

Relay Enhanced LTE-Advanced Networks

LTE-Advanced Radio Access Enhancements: A Survey

A novel scheduling framework for QoS-aware OFDMA resource allocation in a network with small relay cells and macro users

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